Visualizzazione archivio di giovedì, 27 gennaio AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2022 Jan 27 1232 UTC

SIDC Forecast

Valid from 1230 UTC, 27 Jan 2022 until 29 Jan 2022
Brillamenti solari

C-class flares expected, (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
27 Jan 2022103005
28 Jan 2022104007
29 Jan 2022105007

Bulletin

Solar activity was relatively quiet over the last 24 hours with a C1-class flare beside the number of sunspot groups visible on the disc. A new bipolar Catania sunspot group 19 (NOAA-AR 2938) has emerged close to the East limb. The other sunspot groups did not show any significant flaring activity. Solar activity is expected to remain slightly active with C-class flares in the next 24 hours and with a small probability of M-class flare.

No Earth directed Coronal Mass Ejection (CME) has been detected in the available coronagraph imagery over the last 24 hours.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain at nominal levels in the next 24 hours. The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold and is expected to be close to the threshold or just above in the next 24 hours due to the increase of the solar wind speed. The greater than 2 MeV electron fluence dropped to nominal levels in the past 24 hours and is expected to be at between nominal and is expected to be at between nominal and moderate levels in the next 24 hours.

The solar wind parameters measured in the Earth environment (by DSCOVR) remained enhanced: the solar wind speed continued to increase from about 450 km/s to 525 km/s, the interplanetary magnetic field remained slightly elevated up to 7.6 nT, and its southward Bz-component fluctuated between -5.4 nT and 5.5 nT being manly positive. The enhanced measurements are associated with the effect from the solar high-speed stream connected to the Coronal Hole (positive magnetic polarity) that crossed the central meridian on January 21. The effect of the high-speed streams associated to the recurrent equatorial coronal hole facing Earth last January 26 (positive magnetic polarity) is expected to impact the solar wind conditions in about 2 days.

Geomagnetic conditions were quiet to unsettled (K_Bel 1-3) and at planetary levels (NOAA-Kp 1-3). Quiet geomagnetic conditions with unsettled periods are expected to continue in response to the high-speed streams from an equatorial Coronal Hole (that crossed the central meridian on January 21).

Today's estimated international sunspot number (ISN): 079, based on 09 stations.

Solar indices for 26 Jan 2022

Wolf number Catania083
10cm solar flux102
AK Chambon La Forêt017
AK Wingst012
Estimated Ap011
Estimated international sunspot number071 - Based on 19 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
Nessuna

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

Tutti gli orari in UTC

<< Vai alla pagina della panoramica giornaliera

Ultime notizie

Supporta SpaceWeatherLive.com!

Molte persone vengono su SpaceWeatherLive per seguire l'attività del Sole o sapere se ci sia la possibilità di vedere l'aurora, ma a maggior traffico corrispondono costi maggiori. Considerate una donazione se vi piace SpaceWeatherLive così che possiamo mantenere online il sito web!

Dona SpaceWeatherLive Pro
Supporta SpaceWeatherLive con il nostro merchandise
Dai un'occhiata al nostro merchandise

Notizie sul meteo spaziale

Ultimo brillamento X2025/03/28X1.1
Ultimo brillamento M2025/04/01M2.5
Ultima tempesta geomagnetica2025/03/27Kp5 (G1)
Giorni senza macchie
Ultimo giorno senza macchie2022/06/08
Media mensile Numero di Macchie Solari
marzo 2025134.2 -20.4
aprile 2025143 +8.8
Ultimi 30 giorni129.8 -16.3

Questo giorno nella storia*

Brillamenti solari
12001X1.21
22001M7.3
32001M4.52
42013M3.28
52004M2.47
DstG
11993-165G3
21968-112G3
31978-109G1
41984-108G2
51989-101G2
*dal 1994

Social networks